condition	mean	min	max
0 h after light	4.153855	4.15015	4.15756
4 h after light	5.223155	4.81167	5.63464
8 h after light	9.589405	9.41879	9.76002
4 h after dark	12.21421	9.99542	14.433
8 h after dark	6.28796	5.47325	7.10267
12 h after dark	4.326145	3.60103	5.05126